#include <iostream>
#include <string>

using namespace std;

int func_Add(const int &val_1 ,const int &val_2)
{
    return val_1 + val_2 ;
}

int main(int argc, char const *argv[])
{
    
    int val = 10;
    
    const int &ref = val ;
    
    cout << "ref = " << ref << endl;

    int val_1 = 80 ;
    int val_2 = 80 ;
    cout << "val_1 + val_2 = " << func_Add(val_1,val_2) << endl ;

    const int & ref_1 =10 ;

    const int val_3 = 50;
    
    const int & ref_2 = val_3;

    const int & ref_3 = val_1 + val_2;


    return 0;
}
